Dougco specializes in metal finishing services, offering mechanical surface finishing such as vibratory and tumble deburring, burnishing, and casting impregnation. They provide a passivation process to seal porous metal castings and customize finishes to meet specific requirements. Operating in Oakland since 1964, Dougco focuses on mechanical mass finishing of manufactured parts and also offers casting impregnation services. Their processes produce clean, dry parts with surface finishes suitable for direct use or further manufacturing steps at other facilities.